Door guard and lock.



W. HARLEV, JR.

DOOR GUARD AND LOCK.

APPLICATION mzo owe. me.

Patented Dec. 17, 1918.

WILLIAM'HARLEV, JR., OF CHICAGO, ILLINOIS.

DOOR GUARD AND LOCK.

Specification of Letters Patent.

Patented Dec. 17, 1918.

vA 'iplieatnm filed December 6, 1916. Serial No. 135,322.

T 0 all whom it may concern:

Be it known that I, WILLIAM HARLEV, J12, a citizen of the United States, residing at Chicago, in the county of Cook and Stateot Illinois, have invented certain-new and useful Improvements in Door Guards and Locks, of which the following is a specification.

This invention relates to an attachment for use in connection with doors, for locking them in closed position, and also for holding them against being opened beyond a predetermined amount. Chains and other devices have heretofore been used for the latter purpose, but such chains are apt to mar the door and casing. and the other devices are usually more or less unsightly, and project from the door casing even when not in use. i I

1 The objects of the present invention are to provide a door guard and lock which will be substantially concealed when not in use; to provide such a device which-willbe comparatively simple and cheap in construction, and efficient in operation; to provide a lock or guard of this character which may be used on either right or left-hand doors; and to provide such other advantages as will appear more fully from the following description. In the accompanying drawings illustrating this invention:

Figure 1 is a horizontal sectional view'of a door and easing, showing my improved guard and lock in the position which it assumes when the door is open;

Fig. 2 is a sectional elevation taken on the line 22 of Fig. 1; and

Fig. 3 is a front elevation of the guard and lock, shown in the open position in full lines, and in closed position in dotted lines. I

Although the advantages of door guards are well known, their use in connection with high-grade trim has been more or less objectionable, as above suggested, on account of their'unsightly appearance and liability of injuring the woodwork. As shown in the accompanying drawings, I provide a combined guard and lock which is set into the casing and issubstantially concealed when the door-is closed. This device comprises a plate 4, which is bent over at thetop to form a flange 5, and is also bent outwardly at the lower end to form a recess 6 for the pivot and for the locking button. The casing 7 is cut away as indicated in the drawings, to re ceive the'plate 4. The locking arm or memher 8 has a slot 9 extending nearly the full length thereof, and thereby forming two branches 10 and 11. One end of the branch 10 is hinged at 12 to a stud 13, which is pivoted to the lower end of the plate 4. This forms a universal joint, so that the locking arm 8 may swing in both vertical and horizontal planes. This arm is also provided at its outer end with a ring or projection 1.4 for engagement by the finger. The outer end is also provided with a slot 15, which engages with the flange 5 for holding the locking member in closed position, The bran'h 10 has a projection 16 for engagement with the locking button. for'locking the door in closed position. The inner end 17 of the branch 11 is preferably curved as shown, to form a guide for the locking button, to guide it into the slot 9.

The plate 4 is slightly offset to receive the end'of a spring 18, which, in the position shown in the drawings, extends downwardly and outwardly, and terminates in a bent or flanged end 19, which extends into the recess 6, just above the upper edge of the locking member when it is in extended position. The plate 4 and spring 18 are held in position by s rews 20, some of whichare arranged so that their heads will be covered by the locking arm when it is in extended position, so that such screws cannot be readily re.- moved. V i

The door 21 is provided with a plate 22, secured thereto at anoint opposite the recess 6 in the casing. This plate is provided with a projection or button 23, which may be formed integrally therewith or attached thereto in any manner desired. The plate is held by means of s rews 24, some of which are also preferably covered by the, locking bar 8 when it is in locking position.

When the guard is not in use. the lo"king arm 8 is swung to the position shown 'in dotted lines in Figs. 2 and 3, where it is substantially concealed and out of the way. The flange 5 entering the groove 15 will serve to hold the arm in closed position. When the door is closed the button or catch 23 will pass freely below the end 17 of the branch'll, and also below the projection 16 of the branch 10, and into the're ess 6. If it is desired to lock the door in this position, the ring or projection 14 is grasped and the arm 8 is-swung out to extended position, so

that the projection 16 engages with the button 23, as will be readily seen from Fig. 3, wherein the button is shown in locking position in dotted lines. As the locking arm or bar 8 is swung down, it presses the spring 18 toward the casing, and, as it passes down over the end of the spring, it will be held in the extended position thereby. In this connection it will be noted that there will be suthcient play between the door and the arm 8, so that by moving the outer end of the arm toward the door, it may be swung over enough to partially clear the end of the spring so that it can be swung to its closed position and will depress the spring a it is being moved to such position. It will also be noted that this spring arrangement serves another purpose, whereby the device can be used on either right or lefthand doors. In the drawing the device is shown on a left-hand door, but it may be used one right-hand.doorby'placing it the other end up. 'lVhen used in this way, the spring 18 will serve to holdthe arm .8 in its locking or extended position.

When the device isto be used as a guard to permit the partial opening ofthe door, the door is opened asuiiicient distance so that the button 23 will clearthe projection.

16, and the arm 8 is then swungdown so that'thebutton-will enterthe open end of theslot 9. Thi is facilitatedbyth'e downwardly' curved end 17 of the branch 11, which forms a comparatively wide mouth forthe entranceof the button. As soon as the button reaches the end of the slot, as shown in Figs. 1 and 3, it will prevent the further opening movement of the door. It will be noted that the universal joint or hinge of the bar 8 permits the necessary horizontal swinging ,movement thereof, so that it will remain in engagement with the button without binding.

The various part of my improved guard and lo"k may be made of any suitable material, and the form or shape mav be changed to suitditferent conditions, without departing from the scope of this invention, and therefore I do not wish to limit myself to the eXact construction or arrangement herein shown and described, except as specified in the following claims, in which I claim:

1. A door guard comprising a plate having ,a laterally extending flange at one end thereof, a locking arm hinged to the other end of said plate'by a universal joint, and adapted to swing in vertical andhorizontal planes, said arm having a slottherein-extended from the pivoted end to'a point ad'- jjacent to the other end, and a lockingb'utton adapted to be secured to the door and ar ranged to enter the open end of the'slot when the arm is in horizontal position to engage with said slot to limit the opening movement of the ,doonsaid arm aiseQhaving earers a slot in the free end thereof for engagement'with said flange, to "hold the arm in closed position.

2. A door guard comprising a plate having an offset in the lower end thereof, a pivot secured to the offset portion of the plate, an arm hinged to said pivot, sa d arm having a ring or projection for swinging the same, and having a slot extending to the hinged end, means for fastening said arm in closed position and a catch secured to the doorand adapted to pass freely below the lower end of the arm when the arm is in raised position, and to engage withsaid slot when the arm is swung to -locking posi tion.

3. A door guard comprising a plate adapted to be secured to the door casing, a locking arm hinged by means of a universal joint to the lower end of said plate, and adapted to swing in vertical and "horizontal planes, ineans-forholding said arm-in raised or folded position, said .arm' having 2'3. slot extending yfromits hinged end to a I point adjacentto itsouter or "free end, and a look-'- ingmember comprising :a :button adapted to be secured ,to the wedge of 'the door, and toengage with a recess iii-said .plate when the door is in closed position, said button being arranged so-that itwill enter the open end oftheslot in said-bar when theibar is wung down to horizontal position. 4:. ihecombination with adoor'havinga rabbet in the frame thereof in 'alinement with the edge of thedoon-a plate fitting in said rabbet, a' locking bar'hinged 'by'means of a universal jointfto the lower end'ofsaid plate,rmeans for holding said bar in'r'aised or foldedpositiomsaid' plate also having a recess-below "the lower'or pivoted. end of the bar, said bar also having a-slotextending "from itshingedend to .5 a :point ::adjacent to its free-end,ya plate secured to 'the'edge of the door, a button engaging with said plate adapted to enter the recess inthe firstnamed plate when'the door isin closed position, and to enter the slot in said bar when the bar is in horizontal position, said plates having screws for holdingthe same, which are covered bv the'bar when the bar is in engaging position.

5. A door guard forright and left-hand doors. comprising a plate, a *locking'arm hinged to said plate and'having a slot therein extending from'the'hinged-end to a-point adjacent ing the arm in extended position preparatory to receiving'the catch, and a catch secured to'the door and arranged to enterthe open 'end'of the slot when-the arm is in extended position.

.6. in a device of the character set forth,

the combination of a plate, a locking arm hinged to said plate by a universal joint, and

having a slot therein extending from the to the other end,-means for holdhinged end to a point adjacent to the other end, a spring secured to said plate and extending outwardly for holding the arm in horizontal or extended position, and a lock ing member adapted to be secured to the door and to engage with the slot to limit the opening movement of the door.

7 In a combined door guard and lock, the combination of a plate adapted to be secured to the casing between the casing and edge of the door, a locking arm hinged to said plate by a universal joint, said arm having a slot t ierein extending from the jointed end toa point adjacent to the other end, with a relatively wide mouth at its open end, said arm also having a projection adjacent to the joint for locking the door in closed position, and a catch adapted to be secured to the edge of the door and toengage with either said pro jection or said slot.

8. In a device of the character set forth, the combination of a plate adapted to be socured to the casing, and having a flange at one end thereof and an oifset portion at the opposite end thereof, an arm connected by means of a universal joint to said offset portion, said amid having a groove in the outer end for engagement with said flange, to hold the arm in closed osition, a spring connected with said plate or holding the arm in extended position, a catch adapted to be socured to the door, said arm being provided with a projection for engagement with the catch when the door is in closed position, and with a slot for engagement with the catch to permit the door to be opened to a predetermined position.

9. In a door lock and guard, the combination of a hooked locking arm, means for pivoting the arm to the casing, a button secured to the door, said arm having a projection thereon for engagement with the button to lock the door in closed position when the arm is swung to horizontal or extended position, the hooked portion of the arm extending beyond said projection so that it may also be engaged by the button when the arm is in such position.

10. In a device of the character set forth, the combination of a locking arm, means for pivoting the arm to the casing, whereby the arm maybe swung to vertical closed, or horizontal extended position, means for holding the arm in-'extended position, a catch adapted to be secured to the door, a projection on said arm for engagement with the catch when the armis in extended position, for holding the door closed, said arm also having a slot therein which is adapted to be enby the catch for permitting the door gaggd to opened a predetermined amount.

WILLIAM HARLEV, JR.

Copies of this patent iney be obtained for five cent: mm, by addrening the "Commissioner of Patents, Washington, D. 0." 

